DO 8-channel 24 VDC isolated card specifications

Installation notes

Specifications

Table: DO 8-channel 24 VDC isolated card specifications
Item Specification
Number of channels Eight
Output range 2 VDC to 60 VDC
Output rating 1.0 A (inrush 4.0 A for <100 ms; 6.0 A for <20 ms)
Off-state leakage 1.2 mA maximum
Configurable channel types
Discrete Output If FAIL_ACTION_MODE is Hold last value (default): Output stays in last state submitted by the controller.
If FAIL_ACTION_MODE is Go to configured failure action mode: Output is driven to the configured faultstate value.
Momentary Output If FAIL_ACTION_MODE is Hold last value (default): Output finishes current pulse.
If FAIL_ACTION_MODE is Go to configured failure action mode: Output is driven to the configured faultstate value and the channel is re-configured as a latched output.
Continuous Pulse Output If FAIL_ACTION_MODE is Hold last value (default): Output continues pulsing.
If FAIL_ACTION_MODE is Go to configured failure action mode: Output is driven to the configured faultstate value and the channel is re-configured as a latched output.
LocalBus current (12 VDC nominal), per card
  • 100 mA typical
  • 150 mA maximum
Field circuit power, per card None
Isolation Each channel is optically isolated from the system and from each other and factory tested to 1500 VDC.
Heat dissipation 4.2 W
Optional fuse 2.0 A (inrush 5.0 A for <10 ms at 0.1% duty cycle)
Mounting Assigned slot of I/O carrier

Wiring diagram

Figure: Wiring diagram for DO 8-channel 24 VDC isolated card